Title:
INTAKE CONTROLLER FOR CYLINDER INJECTION TYPE SPARK-IGNITION ENGINE
Document Type and Number:
Japanese Patent JP3641931
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an intake controller capable of switching gas flow inside a combustion chamber to a normal tumble flow from a reverse tumble flow or vice versa and forming an optimal gas flow spot correspondingly to the engine operating condition.
SOLUTION: When a control valve 15 arranged on the downstream side of intake valve stems 8a, 9a of intake ports 6, 7 is placed in the position almost parallel to an intake flow A, a normal tumble flow a1 is formed inside a combustion chamber 5, and when the control valve 15 is placed in the position blocking the half side of the cross section of the intake ports 6, 7, a reverse tumble flow a2 is formed inside the combustion chamber 5. Thus gas flow inside a combustion chamber can be changed from a normal tumble flow to a strong reverse tumble flow correspondingly to the engine operating condition without accompanying output lowering caused by lowering of intake efficiency.
Inventors:
Masashi Matoba
Application Number:
JP7462998A
Publication Date:
April 27, 2005
Filing Date:
March 23, 1998
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
F02B31/00; (IPC1-7): F02B31/00
Domestic Patent References:
| JP11141338A | ||||
| JP9256858A | ||||
| JP9250351A | ||||
| JP6212982A | ||||
| JP10205338A | ||||
| JP7217436A |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Iwa Saki Kokuni
Akira Kurihara
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu
Iwa Saki Kokuni
Akira Kurihara
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu
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